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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Copyright 2007-2008 Michele Mostarda ( michele.mostarda@gmail.com ).<a name="line.2"></a>
<FONT color="green">003</FONT>     * All Rights Reserved.<a name="line.3"></a>
<FONT color="green">004</FONT>     *<a name="line.4"></a>
<FONT color="green">005</FONT>     * Licensed under the Apache License, Version 2.0 (the 'License');<a name="line.5"></a>
<FONT color="green">006</FONT>     * you may not use this file except in compliance with the License.<a name="line.6"></a>
<FONT color="green">007</FONT>     * You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an 'AS IS' BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    package com.asemantics.rdfcoder.parser.bytecode;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>    import com.asemantics.rdfcoder.CoderUtils;<a name="line.21"></a>
<FONT color="green">022</FONT>    import org.apache.bcel.classfile.ClassParser;<a name="line.22"></a>
<FONT color="green">023</FONT>    import org.apache.bcel.classfile.JavaClass;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    import java.io.File;<a name="line.25"></a>
<FONT color="green">026</FONT>    import java.io.FileInputStream;<a name="line.26"></a>
<FONT color="green">027</FONT>    import java.io.IOException;<a name="line.27"></a>
<FONT color="green">028</FONT>    import java.io.InputStream;<a name="line.28"></a>
<FONT color="green">029</FONT>    import java.util.jar.JarEntry;<a name="line.29"></a>
<FONT color="green">030</FONT>    import java.util.jar.JarFile;<a name="line.30"></a>
<FONT color="green">031</FONT>    <a name="line.31"></a>
<FONT color="green">032</FONT>    /**<a name="line.32"></a>
<FONT color="green">033</FONT>     * This class helps the {@link JavaBytecodeFileParser}<a name="line.33"></a>
<FONT color="green">034</FONT>     * to load inner classes and parse it.<a name="line.34"></a>
<FONT color="green">035</FONT>     *<a name="line.35"></a>
<FONT color="green">036</FONT>     * @see JavaBytecodeFileParser<a name="line.36"></a>
<FONT color="green">037</FONT>     */<a name="line.37"></a>
<FONT color="green">038</FONT>    public interface JavaBytecodeClassLoader {<a name="line.38"></a>
<FONT color="green">039</FONT>    <a name="line.39"></a>
<FONT color="green">040</FONT>        /**<a name="line.40"></a>
<FONT color="green">041</FONT>         * Loads a &lt;i&gt;JavaClass&lt;/i&gt; object.<a name="line.41"></a>
<FONT color="green">042</FONT>         *<a name="line.42"></a>
<FONT color="green">043</FONT>         * @param pathToClass<a name="line.43"></a>
<FONT color="green">044</FONT>         * @return the loaded class object representation.<a name="line.44"></a>
<FONT color="green">045</FONT>         * @throws IOException<a name="line.45"></a>
<FONT color="green">046</FONT>         */<a name="line.46"></a>
<FONT color="green">047</FONT>         JavaClass loadClass(String pathToClass) throws IOException;<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>        /**<a name="line.49"></a>
<FONT color="green">050</FONT>         * Allows to load a Jar class file.<a name="line.50"></a>
<FONT color="green">051</FONT>         */<a name="line.51"></a>
<FONT color="green">052</FONT>        public static class JarClassLoader implements JavaBytecodeClassLoader {<a name="line.52"></a>
<FONT color="green">053</FONT>    <a name="line.53"></a>
<FONT color="green">054</FONT>            /**<a name="line.54"></a>
<FONT color="green">055</FONT>             * Represents the JAR file. <a name="line.55"></a>
<FONT color="green">056</FONT>             */<a name="line.56"></a>
<FONT color="green">057</FONT>            private File file;<a name="line.57"></a>
<FONT color="green">058</FONT>    <a name="line.58"></a>
<FONT color="green">059</FONT>            /**<a name="line.59"></a>
<FONT color="green">060</FONT>             * Represents the jarfile object.<a name="line.60"></a>
<FONT color="green">061</FONT>             */<a name="line.61"></a>
<FONT color="green">062</FONT>            JarFile jarFile;<a name="line.62"></a>
<FONT color="green">063</FONT>    <a name="line.63"></a>
<FONT color="green">064</FONT>            /**<a name="line.64"></a>
<FONT color="green">065</FONT>             * Constructor.<a name="line.65"></a>
<FONT color="green">066</FONT>             *<a name="line.66"></a>
<FONT color="green">067</FONT>             * @param f  path to the JAR file to load.<a name="line.67"></a>
<FONT color="green">068</FONT>             */<a name="line.68"></a>
<FONT color="green">069</FONT>            public JarClassLoader(File f) {<a name="line.69"></a>
<FONT color="green">070</FONT>                if(f == null) {<a name="line.70"></a>
<FONT color="green">071</FONT>                    throw new NullPointerException("invalid jarFile: cannot be null");<a name="line.71"></a>
<FONT color="green">072</FONT>                }<a name="line.72"></a>
<FONT color="green">073</FONT>                if(! f.isFile()) {<a name="line.73"></a>
<FONT color="green">074</FONT>                    throw new NullPointerException("invalid jarFile: expected dir");<a name="line.74"></a>
<FONT color="green">075</FONT>                }<a name="line.75"></a>
<FONT color="green">076</FONT>    <a name="line.76"></a>
<FONT color="green">077</FONT>                file = f;<a name="line.77"></a>
<FONT color="green">078</FONT>            }<a name="line.78"></a>
<FONT color="green">079</FONT>    <a name="line.79"></a>
<FONT color="green">080</FONT>            /**<a name="line.80"></a>
<FONT color="green">081</FONT>             * Loads a Java class representation on the given path to class.<a name="line.81"></a>
<FONT color="green">082</FONT>             *<a name="line.82"></a>
<FONT color="green">083</FONT>             * @param pathToClass<a name="line.83"></a>
<FONT color="green">084</FONT>             * @return the loaded class object representation.<a name="line.84"></a>
<FONT color="green">085</FONT>             * @throws IOException<a name="line.85"></a>
<FONT color="green">086</FONT>             */<a name="line.86"></a>
<FONT color="green">087</FONT>            public JavaClass loadClass(String pathToClass) throws IOException {<a name="line.87"></a>
<FONT color="green">088</FONT>                if(jarFile == null) {<a name="line.88"></a>
<FONT color="green">089</FONT>                    jarFile = new JarFile(file);<a name="line.89"></a>
<FONT color="green">090</FONT>                }<a name="line.90"></a>
<FONT color="green">091</FONT>                JarEntry jarEntry = jarFile.getJarEntry( CoderUtils.fullyQualifiedObjectToArchivePath(pathToClass) );<a name="line.91"></a>
<FONT color="green">092</FONT>                if(jarEntry == null) {<a name="line.92"></a>
<FONT color="green">093</FONT>                    return null;<a name="line.93"></a>
<FONT color="green">094</FONT>                }<a name="line.94"></a>
<FONT color="green">095</FONT>                InputStream is = jarFile.getInputStream(jarEntry);<a name="line.95"></a>
<FONT color="green">096</FONT>                try {<a name="line.96"></a>
<FONT color="green">097</FONT>                    ClassParser classParser = new ClassParser(is, pathToClass);<a name="line.97"></a>
<FONT color="green">098</FONT>                    return classParser.parse();<a name="line.98"></a>
<FONT color="green">099</FONT>                } finally {<a name="line.99"></a>
<FONT color="green">100</FONT>                    is.close();<a name="line.100"></a>
<FONT color="green">101</FONT>                }<a name="line.101"></a>
<FONT color="green">102</FONT>            }<a name="line.102"></a>
<FONT color="green">103</FONT>    <a name="line.103"></a>
<FONT color="green">104</FONT>            @Override<a name="line.104"></a>
<FONT color="green">105</FONT>            public void finalize() throws IOException {<a name="line.105"></a>
<FONT color="green">106</FONT>                if(jarFile != null) {<a name="line.106"></a>
<FONT color="green">107</FONT>                    jarFile.close();<a name="line.107"></a>
<FONT color="green">108</FONT>                }<a name="line.108"></a>
<FONT color="green">109</FONT>            }<a name="line.109"></a>
<FONT color="green">110</FONT>            <a name="line.110"></a>
<FONT color="green">111</FONT>        }<a name="line.111"></a>
<FONT color="green">112</FONT>    <a name="line.112"></a>
<FONT color="green">113</FONT>        /**<a name="line.113"></a>
<FONT color="green">114</FONT>         * Directory class loader.<a name="line.114"></a>
<FONT color="green">115</FONT>         */<a name="line.115"></a>
<FONT color="green">116</FONT>        public static class DirClassLoader implements JavaBytecodeClassLoader {<a name="line.116"></a>
<FONT color="green">117</FONT>    <a name="line.117"></a>
<FONT color="green">118</FONT>            /**<a name="line.118"></a>
<FONT color="green">119</FONT>             * The directory to load.<a name="line.119"></a>
<FONT color="green">120</FONT>             */<a name="line.120"></a>
<FONT color="green">121</FONT>            private File dir;<a name="line.121"></a>
<FONT color="green">122</FONT>    <a name="line.122"></a>
<FONT color="green">123</FONT>            /**<a name="line.123"></a>
<FONT color="green">124</FONT>             * Constructor.<a name="line.124"></a>
<FONT color="green">125</FONT>             *<a name="line.125"></a>
<FONT color="green">126</FONT>             * @param d<a name="line.126"></a>
<FONT color="green">127</FONT>             */<a name="line.127"></a>
<FONT color="green">128</FONT>            public DirClassLoader(File d) {<a name="line.128"></a>
<FONT color="green">129</FONT>                if(d == null) {<a name="line.129"></a>
<FONT color="green">130</FONT>                    throw new NullPointerException("invalid classes d: cannot be null");<a name="line.130"></a>
<FONT color="green">131</FONT>                }<a name="line.131"></a>
<FONT color="green">132</FONT>                if(! d.isDirectory()) {<a name="line.132"></a>
<FONT color="green">133</FONT>                    throw new NullPointerException("invalid d: expected directory");<a name="line.133"></a>
<FONT color="green">134</FONT>                }<a name="line.134"></a>
<FONT color="green">135</FONT>    <a name="line.135"></a>
<FONT color="green">136</FONT>                dir = d;<a name="line.136"></a>
<FONT color="green">137</FONT>            }<a name="line.137"></a>
<FONT color="green">138</FONT>    <a name="line.138"></a>
<FONT color="green">139</FONT>            /**<a name="line.139"></a>
<FONT color="green">140</FONT>             * Loads a class file into a directory.<a name="line.140"></a>
<FONT color="green">141</FONT>             * <a name="line.141"></a>
<FONT color="green">142</FONT>             * @param pathToClass<a name="line.142"></a>
<FONT color="green">143</FONT>             * @return the loaded class object representation.<a name="line.143"></a>
<FONT color="green">144</FONT>             * @throws IOException<a name="line.144"></a>
<FONT color="green">145</FONT>             */<a name="line.145"></a>
<FONT color="green">146</FONT>            public JavaClass loadClass(String pathToClass) throws IOException {<a name="line.146"></a>
<FONT color="green">147</FONT>                File classFile = new File(dir, CoderUtils.fullyQualifiedObjToFilePath(pathToClass) );<a name="line.147"></a>
<FONT color="green">148</FONT>                InputStream is = new FileInputStream(classFile);<a name="line.148"></a>
<FONT color="green">149</FONT>                try {<a name="line.149"></a>
<FONT color="green">150</FONT>                    ClassParser classParser = new ClassParser(is, pathToClass);<a name="line.150"></a>
<FONT color="green">151</FONT>                    return classParser.parse();<a name="line.151"></a>
<FONT color="green">152</FONT>                } finally {<a name="line.152"></a>
<FONT color="green">153</FONT>                    is.close();<a name="line.153"></a>
<FONT color="green">154</FONT>                }<a name="line.154"></a>
<FONT color="green">155</FONT>            }<a name="line.155"></a>
<FONT color="green">156</FONT>    <a name="line.156"></a>
<FONT color="green">157</FONT>        }<a name="line.157"></a>
<FONT color="green">158</FONT>    <a name="line.158"></a>
<FONT color="green">159</FONT>    }<a name="line.159"></a>




























































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